Magnetization dynamics in magnonic structures with different geometries: interfaces, notches and waveguides. (24th April 2017)

• Record Type: Journal Article
• Authors: Mansurova, M; von der Haar, J; Panke, J; Walowski, Jakob; Ulrichs, Henning; Münzenberg, M
• Is Part Of: Journal of physics. Volume 29:Number 21(2017)
• Publication Date: 2017-04-24
• Subjects: magnetization dynamics -- magnonic crystals -- topologies; Condensed matter -- Periodicals; Matière condensée -- Périodiques; Vaste stoffen; Vloeistoffen; Natuurkunde; Electronic journals; Computer network resources; 530.4105
• DOI: 10.1088/1361-648X/aa6bd1
• Languages: English
• ISSNs: 0953-8984

Abstract

Abstract: The discovery of ultrafast magnetization dynamics 20 years ago has led to a broad variety of experimental techniques to explore phenomena in magnetic materials with high temporal resolution. In the current article we present a study dealing with broadband excitation of spin-wave packets at different magnonic crystal continuous magnetic film interfaces. Similar to protected conducting states on the surfaces of topological band insulators, these interfaces exhibit surface spin-wave modes that propagate out of the crystal into the continuous film. The propagation distance depends on the direction of the applied magnetic field as well as the surface geometry of the crystal.